Writing-machine.



E. B. HESS. WRITING MACHINE.

APPLICATION FILED NOV. 24, 1905.

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WRITING MACHINE.

APPLICATION FILED NOV. 24, 1905.

Patented June 16, 19 14.

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WRITING MACHINE.

APPLICATION FILED 11011.24, 1.905.

1,100,301 Patented June 16,1914.

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WRITING MACHINE.

APPI-IOATION'PILED NOV. 24, 1905.

Patented June 16,1914.

6 SHEETS-SHEET 4.

ATTORNEY E. B. HESS. V WRITING MACHINE. APPLIOATION FILED NOV. 24, 1905.

1,100,301 Patented June 16,1914.

' 6 SHEETS-SHEET 6.

) W Hill rrow/5r UNITED STATES PATENT OFFICE.

EDWARD B. HESS, OF NEW YOBI lL N, Y., ASSIGNOR, BY MESNE ASSIGNMENTS, TO ROYAL TYPEWRITER COMPANYQINQ, OF NEW YORK, N.- Y., A CORPORATION OF new Yonx.

WRITING-MACHINE.

Patented June 16, 1914.

a'ppiimitn filed November 24, i905. serial No. 288,908.

To all whom it may concern Be it known that I, EDWARD B. Hnss, a citizen of the United States, residing in the borough of Brooklyn, city of New Yonk, State 'of New York, have invented certain new and useful Improvements in Writing- Machines, of which the following is a specification. v I

This invention relates to 'paper feeding and controlling devices of a writing machine having type-bars striking at a printing point on a transversely movable revoluble cylin-. drical platen.

It comprises front and rear feed rolls adapted to be simultaneously thrown into and outof action; marginal clamps movable longitudinally of the platen and capable of being moved away from the face of the platen out of the paths of the type bars; a pressure bar, that may contain a scale, located in front of and above the front feed rolls and preferably normally one letter space below the line of print, to which, however, it may be moved at will; a card and envelop holder movable longitudinally of the platen and capable in all its positions of being swung rearwardly so as not to interfere with free discharge of sheets from the machine. These and other features are hereinafter set forth in detail.

In the accompanying drawings: Figure 1 is a top plan view; F 1g. 2, a bottom plan; Fig. 3, a front elevation; Fig. 4, an end elevation of the right-hand sideof the carriage; Fig. 5, a view similar to Fig. l, on a larger scale, omitting some of the parts; Fig. 6, a sectional view on line 6, 6, of Fig. 2 showing the feed rolls in engagement with the platen; Fig. 7, a similar view on line 7, 7, of Fig. 2 showing the feed'rolls thrown out of. operative position, and one of the margin clamps thrown up out of the paths of the type-bars; Figs. 7 and '2' are detail views showing modifications;Fig. 8, an elevation of the right-hand end of the carriage. omitting some parts and showing the lever and gearing for throwing the feed rolls into and out of action; Fig.9,adetail perspective view showing margin clamps and a rocking bar upon which they are carried; Fig. 10, a

detail plan showing a modification of the manner of mounting the margin clampsupon their supporting bar; Fig. 11, an end view of the parts shown in Flg. 10; Fig. 12, 1s

a perspective view showing a modified con: struction' and arrangement of the margin clam s, and also the intermediate card and enve opcl'amp' mounted on the shaft carry ing the margin clamps; Fig. 13, a rear elevation of one of these margin clamps on its bar; Fig". 14, a longitudinal section of the same; Fig. 15, an end view, the barbe'ing in section: and Fig. 16, a bottom plan view: Fi 17, is a bottom plan view of the card an envelop clam-'p mounted on the bar Fig. 18, a side elevation thereof, the bar eing in section; Fig. 19, a front elevation showing the platen, scale and pressure bar, ribbon vibrator and'type bar guide.

a, a are the carriage side lates in which is mounted the platen b. a is the actuating lever of line space devices, not shown. The ordinary paper table I) is mounted as usual upon a rod 6" pivoted in the side plates. Beneath the forward edge of the table is an angle-plate 0 extending between. the side plates and carrying a curved paper pan or guide 0 (Fig. 6) extending around the un der side of the platen and cut away opposite the back and front feed rolls. Lugs d on the under face of plate c (Fig. 2) form bearings for a shaft d, carrrying three downwardly and forwardly projecting arms d having in their upper faces open trunnions or bearings (Z (Figs. 2 and 6) for a roll shaft 6 upon which are loosely mounted three pressure or paper-feed rolls 6 adapted to cotip'erate with the platen through open ings in the guide 0'. The ends of the arms (Z normally lie in transverse channels f in the face of an adjusting rod f against which the arms are urged by coiled Springs 7 enveloping the shaft d and each having one end bearing against its arm d and the other end attached to a collar g provided with notches adapted to receive pins 9 (dotted in Fig. 2) projecting from the under face of plate 0. This allows an independent adjustment of the spring tension of each of the arms 61 The front feed rolls h are mounted upon a shaft it carried in open bearings or trunnions h in the ends of arms h fixed upon a rock shaft h extending between the side plates of the carriage, Applied to these arms are adjustable springs 79 by which their spring tension may be individually adjusted. The arms 71. extend forwardly and rack f on a pivoted lever arm I extend from each arm 5' out of upwardly from shaft h and have extensions 72. extending rearwardly and upwardly. The 'end of the rear arm h of each of them occupies a transverse channel f in the shaft f against which the arms are urged by the s' rings It. The two series of channels an respectively upon opposite sides thereof, at angles to each other, and are ofi-set or staggered with-reference to each Other Figs. 6 and 7. When in normal position (Fig; 6) with the rolls in operative relation platen, the arms d and k occupy the channels in the rod. When,- however, the rod" is turned through a partial revolution (Fig. 7) the arms ride out upon its periphery, the efiect bein tothrow both the rear feed rolls 6 and the front feed rolls it away from the face of the platen. The shaft. f may be conveniently partially rotated to efiect this operation by providing upon one ,end a gear f smeshing with a circular f, Figs. 2, 4, 8.By means of this organization the front and rear feed rolls, cocperating with the platen to feed or control the inserted sheets operative relation to the platen and will remain in either position subject to control by lever f The pressure and alining bar 21 (shown as engraved with the usual scale) is carried 'upon the ends of arms a" (Figs. 3 and 4) jointed to arms 13 arched to extend over shaft k and rigidl' secured at their rear ends .to a rock .sha 2' 'and,fby their reaction tend always to tion of the pressure and scale draw the'pressure bar against the face of the platenand also to hold it in its lowermost position which is, by preference, one letter space below the rinting line, this position being suficient y far below. the

printing line to prevent the bar, in any way, interfering with the ribbon or ribbon vibrator employedin front stroke machines.

To .hold the scale ressure bar in lowermost position, I pre er also to use heavier springs 17' which perform that function andare connected to the respective arms 5 and to the frame (Fig. 5).

Attached to rock shaft i is a lever i having a projection i from its axis engaging a stop pin on the side plate of the carriage to llmit upward movement of the lever and consequently the lowermost posibar. By depression of lever '5 the pressure bar may be lifted to the line of print for the purpose of adjusting the paper, making 'corrections, fetc., and, durmg'such movement its pressure against the "platen is maintained by springs 21.Th1sbar, normally exerting spring pressure against the platen in. front of the "feed rolls h and but one f in the shaft f are.

to the may conveniently be thrown into or Coiled sprin s i to the rock s aftletter space below the lineof print,not onl cooperates with the. front and rear fee rolls to aflI'ord complete control and ready adjustment of inserted sheets, but also serves to'grip the paper close to the line of print after the paper has assed out of engagement with the front ro ls permitting, with certainty, proper printin close to the bottom edge of thesheet. e bar, having a straight edge, may be utilized in alining the paper when it .is desired to make insertions and corrections: and since it may be-thrown to the line of print by operation of lever t it may be used, in that wa v,to afford reat accuracy, and also acts as a certain gui e in adjusting the paper for printing on ruled lines- It may, under some front and rear feed rolls are thrown out of action. This may be donef-in any convenient way, for instance as shown in Fig. 7, where extensions 71 fromthe 'scale pressure bar bear against the extreme ends of arms 713 so that when these arms are thrown down to carry feed; rolls 7L away from the platen, the bar is also moved from the face of the platen. The same operation may be carried out in other ways. For instance, as in Fig. 7 the ends of arms It may extend upward and engage the rear face of the bar.

The construction and arrangement of margin clamps illustrated in Figs. 1 to 11 are as follows: Extending between the side plates in rear of the platen, somewhat above the plane of its axis, is an an lar or squared shaft adapted to rock in earings 1n the side plates. flat faces of shaft j holds it positions. composed of a fiat curved arm extending around the upper front face of the platen and having lugs it turned up at its sides to form bearings for the shaft of a clamp roller k that extends through an opening in the plate arm I: and bears upon the front face of the platen. This arm is attached to a sheet metal arm m extending parallel with the axis of the platen and having a thumb piece m and a rearwardly extending portion M3, the rear end of which embraces the squared shaft j (Fig. 9) and has a laterally extending part m, upturned at its end'm and apertured to embrace the squared shaft. Between the part m and the squared shaft is interposed an arched plate spring m. The parts m m, forming portion of the left hand margin clamp, are apertured to conform to the sides of the squared. shaft so that when this clamp is thrown upwardly, the shaft is rotated throu h a quarter turn in which position, with the clamp elevated, the shaft is held by theiplatespring j. The right hand margin stop is snnilarly constructed with the exception that the aper- A plate sprin j bearin on in either of two The margin clamps are each tures in the portions m m are round, the arched plate spring m, in this instance, serving to hold this margin clamp, which is capable of turning on the squared shaft, in either its upper or lower position. By holding the margin clamp at the left down with one hand, the -operator may throw the right hand clamp up out of the paths of the type bars, permitting additional printing in t e right hand margin, the shaft j in'this case remaining stationary. When the right hand clamp is held down, the left hand one may be thrown up, the shaft y" turnin with it. en it is desired to throw both c amps up, it is only neeessary to lift the left hand one and the shaft j, being partially rotated, carries the right-1 hand clamp with it. The clamps are slidably mounted on the shaft and are frictionally held in any position to which they are longitudinally adjusted by the spring m.

Since it may be desirable under some circumstances, l have provided that when the feed rolls and scaled pressure bar are moved away from the platen, the margin clamps may also be retracted. This may be conveniently done as illustrated in Fig. 8, which shows a cam face f, on the inner side of lever f working against the end of an arm 7' fast on the end of the margin clamp carrying shaft j. When the lever is rocked to move the feed rolls away from the platen the cam lifts the arm and the margin clamps are also withdrawn from the face of the platen. These clamps are shown as having rollers bearing on the platen. They may, of course, be of any appropriate construction.

' Under some conditions it may be desirable till lliti that they be normally held somewhat away from the platen. This may be conveniently accomplished by adjustable means consisting of a projection from the front face of shaft j, near its end (or near each end) abutting against the paper pan or guide 0 near its edge. llhis projection may consist Fig. 7") of a slotted plate attached to the ront face of j by a clamp bolt j".

Figs. 10 and 11 show a modification. In this case a plate spring m riveted to the outside of part at has mounted in its ends rollers m that run on the flat faces of the bar. The clamps will be properly held with reference to all adjustments described, but their movements endwise of the bar are facilitated. V

Figs. 12 to 16 show further modifications of the margin clamp devices. The clamping surfaces cooperating with the platen are curved metal plates, which may, however, be equipped with rolls similar to those'k Fig. 6. The end of each of the clamping plates N is narrow, the inner edge or. is shown as lying in aplane at right angles to the platen axis, and the outer edge n is curved or inclined outwardly. The inner edge above or back of the curved part of the arm is cut back as at n forming a recess for clearance of the paper leaving the platen, and the rear edge of such recess has a downwardly inclined part 77, serving to deflect the paper. The clamp arm thus formed is at the rear turned down at each side to receive a hinge pin 11:, passing also through upturned lugs n on the top of a roller box traveling on the fixed squared shaft N. Between the sides of this roller box below the shaft are mounted rollers n that run upon the under flat face of the shaft. A roller a turning in an openin in the top of the box bears on the upper face of the shaft and is carried by a flat spring whose ends are seated in apertures in the ln s n". A handle N?, or knob, is applied to t e plate N at the rear and a flat spring N attached to the rear wall of the box works against the rear edge of plate N and holds it depressed or elevated. When elevated the clamp is out of the paths of the type bars. From the rear of each rocking margin clamp arm (or the box on which it is pivoted) projects a gage N the inner edge of which is at right angles to the platen axis, and preferably slightly nearer the center of the machine than is the parallel wall of the recess 91. that afi'ords clearance for passage of sheets passing under the clamps. When the gages N are set with reference to a fed sheet, clearance of the sheet as it leaves the margin clamps is assured.

The intermediate or central card and envelop clam O is similarly mounted on the shaft N, at is divided transversely and its front paper holding part 0 hinged somewhat in front of its roller box by which it is mounted on the shaft.

0 indicates such hinge connection (Figs. 12, 17 and 18) and 0- is a projectionat rear edge of O which, when 0 is raised, passes through an opening 0 in the topplate of part 0 and depresses leaf spring we" the reaction of which upon projection 0 will hold the part 0 elevated. When part 0' is down, in working position, spring m bears against its under face below its pivot and holds it down. When retracted it is folded backwardly to a substantially horizontal position quite out of the way of sheets dischar ed from the platen. Its front end whic bears against the platen is preferably curled upwardly as at 0 a, Fig. 4, indicates the usual rack release lever and y a rocking rack bar.

I claim as my invention: I

1. The combination with the platen of a visible typewriting machine, of front and rear feed rolls, sets of rocking arms in which they are respectively mounted, spring tension devices for each set of arms, an adjusting device for each spring tension device, a transversely channeled rock-shaft with oppositely obliquely disposed seats with which the arms of the front and rear feed. rolls respectively engage, a gear upon the end of the shaft and a shaft rocking lever having an intermeshing gear, 4

' 2. The combination with the platen of a visible typewriting machine "of arms rocking about an axis in rear of the platen and extending forwardly and downwardly, a rear feed roll mounted upon a shaft having bearings in said arms intermediate their free ends and said axis, bell-crank levers mount-- ed to rock about an axis below the platen and having arms extending upwardly and forwardly and arms extending rearwardly, a front feed roll carried by a shaft having bearings in the forwardly extending arms of the bell-cranks, a transverse rotatable shaft having means for acting upon the rear- ,wardly extending arms of the bell-cranks and upon the free ends of the arms carrying the rear feed roll to throw the front and rear feed rolls away from the platen, and means by which the operator may rotate said shaft.

3. In a writing machine, paper feed spring pressed pressure rolls, a releasing shaft provided with gear teeth and by rotation of which the pressure rolls are moved away from the platen, combined with a rocking part having intermeshing gear teeth.

4. In a visible writing machine the combination with a rotatable platen having its printing side at all times in view of the operator, of a combined pressure, alining and scale bar, located adjacent and below the normally visible line of print, means for moving the scale bar from normal position to the line of print and spring means acting to press the scale bar ieldingly against the surface of the platen 1n either its depressed or elevated position and while moving from the latter to the former position.

5. In a visible typewriting machine, a system of pressure devices comprising front and rear spring-pressed feed rolls, an inde- I pendently mounted scale bar independently spring-pressed against theplaten and means for moving them all away from the surface of the platen against the tension of their springs and automatically holding them in removed position.

6. The combination with the platen of a visible typewriting machine of a pressure bar normally located below the printing line, upwardly extending arms by which it is carried, rearwardly extending arms to which the upwardly extending arms are pivoted, a rock shaft to which the rearwardly extending arms are attached, spring acting means tending constantly to force the pressure bar against the platen, and means for rocking the shaft to elevate the pressure bar toward the printing line.

7. A visible writing machine comprising the combination of a platen, a pressure bar normally located below the line of print, a light spring for holding the bar yieldingly against the face of the platen, a spring of superior strength whose reaction holds the bar in normal position, and means for moving the bar to the line of print.

8. In a visible typewriting machine, a system of pressure devices comprising front feed rolls and their springs by which they are pressed against the platen, rear feed rolls and their springs by which they are pressed against the platen, an independently mounted scale bar and its springs by which it is pressed against the platen and means for moving all said feed rolls and the scale bar away from the surface of the platen against the tension of their respective springs.

9. In a front strike typewriting machine, the combination of a rotatable platen having its printing side at all times in view of the operator, an alining scale and pressure bar normally located below the line of print, pressure feed rolls and margin clamps and means for moving the bar to the line of print independently of any movement of the platen feed rolls and margin clamps.

10. In a visible writing machine, the combination of a rotatable platen having its printing side at all times in view of the operator, a scale bar normally located below the line of print and yieldingly pressed toward the exposed printing side of the platen, margin paper holding devices ex tending down in front of said bar when the latter is in normal position below the line of print and means for moving the bar toward the line of print while still overlapped by the margin devices.

11. In a visible typewriting machine, the combination of individual tensioned pressure rolls at the front and rear of the platen and below the horizontal axis thereof, collectively tensioned margin devices located above the platen, a scale and pressure bar spring-pressed against the platen and located at the front of the platen normally below the line of print and means for moving the scale bar and pressure rolls away from the platen.

12. Margin clamp devices for a typewriting machine comprlsing the combination with the platen of an angular shaft parallelwith the platen axis and a clamp carrier embracing the bar and having a springprcssed roller bearing against the bar, whereby the clamp carrier is held in desired position and is capable of ready adjustment longitudinally of the platen.

13. In a visible typewriting machine, a pair of margin paper holding devices mounted above the line of print, a transverse bar extending across the carriage and along which the margin holding devices are adjustable, an alining scale and pressure bar normally located below the line of print but adapted to be moved thereto, spring-pressed pressure devices located below the pressure bar and means for throwing the pressure devices out of engagement with the platen'and moving the scale bar away from it.

14. The combination with the platen of a visible writing machine, of a margin clamp adjustable longitudinally of the platen and extending from the rear of the platen over the front thereof to below the printing line, a scale springressed against the platenbelow the line 0 print and overlapped by the margin clamp, a card holder or clamp adjustable longitudinally of the platen, ex-' tending from the rear of the platen over its front face, terminating above the-line of print and mounted so as to be movable rear- Wardly to inoperative position, and means for moving the scale bar to the line of print.

15. The combination with the platen of a -visible writing machine of a margin clamp adjustable longitudinally of the platen and extending from the rear of the laten over the front thereof to below the prlnting line, a scale below the line .of print and overlapped by the margin clamp, and a card holder or clamp adjustable longitudinally of the platen, extendin from the rear of the platen over its front ace' and terminating above the line of print and mounted so as to be movable rearwardly to inoperative position.

16. In a writing machine the combination with the platen, of margin clamp devices comprising a clamp supporting bar parallel with the axis of the platen, a clamp carrier mounted upon and having a roller contact with the bar for longitudinal adjustment thereon and a clamping arm hinged to the carrier and adapted to be moved awayfrom the platen out of the paths of the type bars.

17 In a visible writing machine, the combination of a platen, a scale bar located below theline of print, a margin clamp and paper guide located above the line of print,

adjustable longitudinally of the platen, exa

tending down across the line of print beyond the upper edge of the scale bar which it normally overlies and having a clearance space with a deflector at the rear thereof to direct paper leaving the platen, and means for moving the scale bar up between the sur- 'face of the'platen and the clamp and guide to the line of print.

18. In a visible writing machine, a margin clamp having a part adapted to engage the paper on the platen and a supporting arm for said part cut away to form a clearance space for a sheet leaving the platen and a paper deflector located at the rear of the clearance space and over which the sheet passes as it is delivered from the platen and means permitting the clamp and deflector to be folded rearwardly into inoperative position. I 4

19. In a visible writing machine the combination with the platen, of a card or envelop clamp, adjustable longitudinally of the platen, hinged intermediate its length so that its leading free end may be folded back to inoperative position out of the path of the paper, and having a deflector for guiding the paper as it leaves the platen and means for holding the clamp in inoperative position. i

In testimony whereof, I have hereunto subscribed my name.

EDWARD B. HESS. Witnesses:

EDWARD C. DAVIDSON, L. F. BROWNING. 

